DE59902540D1 - Process for the distillation of alpha-ethynyl carbinols - Google Patents

Process for the distillation of alpha-ethynyl carbinols

Info

Publication number
DE59902540D1
DE59902540D1 DE59902540T DE59902540T DE59902540D1 DE 59902540 D1 DE59902540 D1 DE 59902540D1 DE 59902540 T DE59902540 T DE 59902540T DE 59902540 T DE59902540 T DE 59902540T DE 59902540 D1 DE59902540 D1 DE 59902540D1
Authority
DE
Germany
Prior art keywords
alpha
distillation
carbinols
ethynyl
ethynyl carbinols
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
DE59902540T
Other languages
German (de)
Inventor
Dr Rahn
Harald Rust
Dr Ruehl
Dr Henkelmann
Dr Stutz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BASF SE
Original Assignee
BASF SE
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BASF SE filed Critical BASF SE
Application granted granted Critical
Publication of DE59902540D1 publication Critical patent/DE59902540D1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
    • C07C29/74—Separation; Purification; Use of additives, e.g. for stabilisation
    • C07C29/76—Separation; Purification; Use of additives, e.g. for stabilisation by physical treatment
    • C07C29/80—Separation; Purification; Use of additives, e.g. for stabilisation by physical treatment by distillation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Distillative recovery of alpha -ethynyl-carbinols (I) from the liquid reaction mixture from the addition of acetylene to alpha , beta -unsaturated carbonyl compounds comprises continuous distillation, in which the feed is passed to the middle of the distillation column, most of the water is distilled off at the top as azeotrope with the solvent and (I) is recovered below the feed port.
DE59902540T 1998-12-08 1999-11-30 Process for the distillation of alpha-ethynyl carbinols Expired - Fee Related DE59902540D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19856592A DE19856592A1 (en) 1998-12-08 1998-12-08 Process for the distillation of alpha-ethynyl carbinols

Publications (1)

Publication Number Publication Date
DE59902540D1 true DE59902540D1 (en) 2002-10-10

Family

ID=7890383

Family Applications (2)

Application Number Title Priority Date Filing Date
DE19856592A Withdrawn DE19856592A1 (en) 1998-12-08 1998-12-08 Process for the distillation of alpha-ethynyl carbinols
DE59902540T Expired - Fee Related DE59902540D1 (en) 1998-12-08 1999-11-30 Process for the distillation of alpha-ethynyl carbinols

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE19856592A Withdrawn DE19856592A1 (en) 1998-12-08 1998-12-08 Process for the distillation of alpha-ethynyl carbinols

Country Status (5)

Country Link
US (1) US6316680B1 (en)
EP (1) EP1008578B1 (en)
JP (1) JP2000169408A (en)
AT (1) ATE223366T1 (en)
DE (2) DE19856592A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108299161B (en) * 2018-03-30 2020-05-19 西南化工研究设计院有限公司 Method for removing water in 2-methyl-3-butyne-2-alcohol and entrainer

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3576889A (en) 1968-01-26 1971-04-27 Lithium Corp Ethynylation of ketones and aldehydes to obtain alcohols
FR1573026A (en) * 1968-01-31 1969-07-04
DE2445133A1 (en) * 1973-10-01 1975-04-03 Hoffmann La Roche PROCESS FOR THE MANUFACTURING OF AETHINYLCARBINOLS
CH642936A5 (en) 1979-10-19 1984-05-15 Hoffmann La Roche AETHINYLATION ALPHA, BETA-UNSATURATED KETONE.

Also Published As

Publication number Publication date
EP1008578B1 (en) 2002-09-04
DE19856592A1 (en) 2000-06-15
US6316680B1 (en) 2001-11-13
EP1008578A1 (en) 2000-06-14
ATE223366T1 (en) 2002-09-15
JP2000169408A (en) 2000-06-20

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: BASF SE, 67063 LUDWIGSHAFEN, DE

8339 Ceased/non-payment of the annual fee